package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.annotation.AutoFill;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.enumeration.OperationType;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        //  进行md5对比
        StringBuilder md5 = DigestUtils.appendMd5DigestAsHex(password.getBytes(), new StringBuilder());
        if (!md5.toString().equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 新增员工方法
     *
     * @param employeeDTO
     */
    @AutoFill(OperationType.INSERT)
    public void addEmp(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        //对象属性拷贝(前提属性名一致)
        BeanUtils.copyProperties(employeeDTO, employee);
        //设置账号状态
        employee.setStatus(StatusConstant.ENABLE);
        //设置MD5加密密码
        employee.setPassword(DigestUtils.appendMd5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes(), new StringBuilder()).toString());

        /* 修改人
        String token = httpServletRequest.getHeader("token");
        Claims itcast = JwtUtil.parseJWT("itcast", token);
        Object id=itcast.get(JwtClaimsConstant.EMP_ID);
        Long id1= (Long) id;*/
        //employee.setUpdateUser(BaseContext.getCurrentId());
        // 创建人
        //employee.setCreateUser(BaseContext.getCurrentId());
        //设置员工创建时间
        //employee.setCreateTime(LocalDateTime.now());
        //员工更新时间
        //employee.setUpdateTime(LocalDateTime.now());
        employeeMapper.addEmp(employee);
    }

    /**
     * 分页查询员工
     *
     * @param employeePageQueryDTO
     * @return
     */
    public PageResult selectPageEmp(EmployeePageQueryDTO employeePageQueryDTO) {
        //开始分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(), employeePageQueryDTO.getPageSize());
        //调用数据库返回数据
        Page<Employee> page = employeeMapper.selectPageEmp(employeePageQueryDTO);
        //封装
        return new PageResult(page.getTotal(), page.getResult());
    }

    /**
     * 启用禁用员工账号
     *
     * @param status
     * @param id
     */
    public void startOrStop(Integer status, Long id) {
       /* Employee employee=new Employee();
        employee.setStatus(status);
        employee.setId(id);*/
        Employee employee = Employee.builder().status(status).id(id).build();

        employeeMapper.updateEmpStatus(employee);
    }

    /**
     * 根据id查询员工
     *
     * @param id
     * @return
     */
    public Employee selectIdEmp(Long id) {
        Employee employee = employeeMapper.selectIdEmp(id);
        employee.setPassword("****");
        return employee;
    }

    /**
     * 编辑员工信息
     * @param employeeDTO
     */
    public void updateEmp(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.updateEmpStatus(employee);
    }
}
